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Export results of Monte Carlo simulation using cds_srr

aliasnikhil

Hi,

 

I simulate a VCO in my design and export results to MATLAB using the cds_srr() function. Now, to account for mismatches, I want to run a Monte Carlo simulation (only 1 run). 

1) Is there any change in the way I export the data into MATLAB after a MC run? 

2) I do not want separate mismatch statistics. Just normal tran results with mismatches accounted for. Is this the final data that is stored? Or are they separate? 

3) I did not select "Save data to allow family plots" thinking I have only 1 MC run and so it is not needed. Do I have to select it even for a single run?

 Please help.

Thanks!

-Nik 

Parents

  • Hi Andrew,

    My second question: 2) I do not want separate mismatch statistics. Just normal tran results with mismatches accounted for. Is this the final data that is stored? Or are they separate? 

     I mean, the simulation first does a nominal sim and then followed by a monte carlo sim. So one would think that the two simulation data are saved separately. What I want from the raw data is to reflect the mismatches from the various devices in my design. So, is the normal transient simulation (without mismatch) saved separately? Or is the normal and Monte Carlo sim done separately by spectre and then combined and saved in a single file as a single data set?

    Effectively, after I import the "data" in MATLAB, I should see a drop in the SNR etc of the VCO due to mismatches in devices. So how do I import this "data" with mismatch into MATLAB?

     

    Thanks!

    -Nik 

Reply

  • Hi Andrew,

    My second question: 2) I do not want separate mismatch statistics. Just normal tran results with mismatches accounted for. Is this the final data that is stored? Or are they separate? 

     I mean, the simulation first does a nominal sim and then followed by a monte carlo sim. So one would think that the two simulation data are saved separately. What I want from the raw data is to reflect the mismatches from the various devices in my design. So, is the normal transient simulation (without mismatch) saved separately? Or is the normal and Monte Carlo sim done separately by spectre and then combined and saved in a single file as a single data set?

    Effectively, after I import the "data" in MATLAB, I should see a drop in the SNR etc of the VCO due to mismatches in devices. So how do I import this "data" with mismatch into MATLAB?

     

    Thanks!

    -Nik 

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